Jöns Jacob
Berzelius

Karolinska (Chemistry Tree)


Adolf
Moberg

Univ. Helsinki (Astronomy Tree)




Fredrik
Woldstedt

Univ. Helsinki


Heinrich Christian
Schumacher

Altona Observatory


Peter Andreas
Hansen

Gotha Observatory


Georg Albert
Fuss

Vilna Observatory (Astronomy Tree)


Friedrich Georg Wilhelm
von Struve

Pulkovo Observatory (Astronomy Tree)


Otto Wilhelm
von Struve

Pulkovo Observatory (Astronomy Tree)


Hugo
Gyldén

Stockholms observatorium (Astronomy Tree)


Carl
Charlier

University of Lund (Astronomy Tree)

Elis
Strömgren

Copenhagen University
(Options)




Hugh Mitchell
Johnson

Chicago (Astronomy Tree)


Thomas Lee
Swihart

University of Arizona

David Livingstone
Crawford

Kitt Peak National Observatory (Astronomy Tree)

Richard Conn
Henry

Johns Hopkins

Preben
Grosbol

Copenhagen University (Astronomy Tree)



Gerard P.
Kuiper

University of Arizona

Pieter Theodorus
Oosterhoff

Leiden (Astronomy Tree)

Kaj Aage
Strand

U.S. Naval Observatory (Astronomy Tree)

Adriaan J
Wesselink

Yale (Astronomy Tree)

Lukas
Plaut

RUG (Astronomy Tree)

Elis StrömgrenX